Combined hinge and operating mechanism for window sashes



' March 29,1938. H, K, SYLVESTER 2,112,388

COMBINED HINGE AND OPERATING MECHANISM FOR WINDOW SASHES Filed Dec. 14, 1956 v 2 Sheets-Sheet 1 March 29, 1938. H. K. SYLVESTER 2,112,388

' COMBINED HINGE AND OPERATING MECHANISM FOR WINDOW SASHES Filed Dec. 14, 1936 r 2 Sheets-Sheet ,2

Patented Mar. 29, 1938 Z,ll2,388

PATENT o'ics COMBINED HINGE AND OPE-RATING'MECH- ANISM FOR WINDOW SASHES Harold Kenneth Sylvester, Hollywood, Calif.

Application December 14, 1936, Serial No. 115,664

3 Claims.

My present invention relates to the provision of combined hingeand operating and adjusting mechanism for window sash, or similar closures, and has for its object the provision of an organization of few and simple parts which will occupy but relatively little space and contribute materially to the sturdiness, convenience and dependability in operation of the closure when mounted and operated.

I I have attained the foregoing objects by means of the structure illustrated in the accompanying drawings, in which- Fig. 1 is a fragmental elevation of a sash and sash casing equipped with my combined hinge and operator structure.

Figs. 2 and 3 are plans, respectively, of the casing and sash members of the upper hinge element.

Figs. 4 and 5 are likewise plans, respectively, of

the sash and casing members of the lower hinge element.

Fig. 6 is a fragmental section through the casing showing the lower casing member in plan with the top thereof removed, disclosing the worm. I

Fig. 7 is a view similar to Fig. 6 showing an assembly oflower sash and lower casing members, the block 16 and worm 28 being sectioned, and

Fig. 8 is a View similar to Figs. 6 and 7 on a smaller scale showing the sashin open position.

Similar reference characters refer to similar parts throughout the respective views.

While sash and similar closures are old and well known structures, they cannot yet be regarded as completely satisfactory, and this is particularly true with respect to hinged or French sash which are a continual source of vexation to owners and housekeepers, notwithstanding their beauty and the convenience of being able to swing the sash completely open or closed, or to any intermediate position. There is nothing, either theoretically or practically, to prevent the assemblying of sash and casing with as much nicety as may be desired except that it appears to be the almost universal experience that swinging or French sash sooner or later sag and bind, which involves the creation of unnecessary and undesirable draughts. Also, the leaning out of a window to grasp an outwardly swinging sash. is

regarded by a good many people as .an'unnecessary hazard and an undesirable feature of their operation.

As will hereafter be seen, my invention will permit the opening and closing of the sash from entirely within the room and the adjustment of the'sash at any-desired extent of opening as it would require great power to move the worm by applying force to the sash while the sash may be. moved by applying very little power to the worm. As shown in Figs. 2 and 3 the casing member I0 and the sash member ll of the upper hinge element are simple rectangular plates with offsets l2 and I3 at one corner, the offset l2 of the casing member being provided with a perforation l4; and the offset I3 of the sash or closure mem- 10 her being provided with a pintle or trunnion [5 to enter the perforation M. It is quite obvious that the plates 'IB and H may be thickened to secure any desired degree of strength without undulyincreasing the bulk of the structure. 15

The lower sash hinge member is similar to the upper sash member except extending from the face of the plate is an arcuate block l6, in the curved portion whereof are formed teeth IT. The center of curvature of the arcuate block I6 is at 20 the center of the offset l8, but, instead of providing this offset with a pintle, I provide it with a bore or bearing It. The lower casing member 20 is likewise similar in plan or outline to the upper casing member except extending from its 25 face is a block 2! complementary in plan to the block carried by the lower sash member. That is, instead of being convexly arcuate the block H is rectangular with an arcuate recess 22 for receiving the arcuate block of the lower sash mem- 30 her. The block 2| is split horizontally in the vertical center and recessed, at 23, to provide a housing and bearings for the worm M which is held in its housing tangentially with respect to and in co-operation with the worm gear 5? of the block 35 Hi. The inner end of the worm 24 is provided with an angular embossment 25, or depression, as may be desired, for co-operation with a preferably detachable operating handle or crank 26, for the entry of which the block 2| is recessed 40 at 21, from its inner vertical face. The extended corner of the lower frame member is provided with an upwardly extended pintle 28 for entering into and co-operating with the bore IS. The two parts of the lower casing member may be 45 secured together by machine screws 2;! and all of the members are transversely bored at 30, 36, etc., which bores are countersunk for attaching screws 3|, by means of which they are secured respectively to the frame and sash. 50

By providing a hinged construction and operating means, the rotation of which is about a single center or axis, I am permitted to greatly simplify the structure and reduce its size, and at the same time secure any degree of strength and 55 dependability in operation which may be deemed necessary in any particular case.

The parts of the heretofore described organization may, if desired, be made by die casting, which produces a product capable of withstanding atmospheric conditions and the life of which, in such a situation, is indefinitely extended.

Having described my invention what I claim is new and desire to secure by Letters Patent is:

1. A combined supporting hinge and operating mechanism for attachment to the top and bottom edges within the plane of window sash and the like comprising a plurality of hinging elements arranged in spaced relation to swing upon an aligning or common center, one of said elements having fixedly secured to the body thereof within the plane of the sash to which it is attached a worm gear, the center of which coincides with the center of rotation of the element with which it forms a part, the complementary portion of said last mentioned hinge element being provided with a housing and journal for a worm, and a worm mounted in said housing and journal so as to engage and co-act with said worm gear.

2. A combined supporting hinge and operating mechanism for window sash and the like comprising a plurality of hinging elements consisting or rectangular plates with ofisets at one corner thereof, said plates being adapted to be fixed respectively at the top of the window frame and to the edge at the top of the sash and to the edge at the bottom of the sash and the bottom of the window frame, the offset of a top plate and bottom plate being perforated and an offset of a top and bottom plate being provided with a trunnion or pintle to enter the perforation in the adjacent plate, one of the plates attached to the sash being provided with a worm gear developed from the face and body of the plate about a center coinciding with the center of revolution with the member with which it is attached and the body of the plate co-operating with said last mentioned plate being provided with a housing and journal for a worm and a worm mounted in said housing and journal in co-operation with said Worm gear.

3. A combined supporting hinge and operating mechanism for Window sash and the like com prising a plurality of hinging elements consisting of rectangular plates with offsets at one corner thereof, said plates being adapted to be fixed respectively at the top of the window frame and upon the edges at the top of the sash and the bottom of the sash and the bottom of the window frame, the offset of a top plate and bottom plate being perforated and an offset of a top and bottom plate being provided with a trunnion or pintle to enter the perforation in the adjacent plate, one of the plates attached to the sash being provided with a worm gear developed from the face of the body of the plate about a center coinciding with the center of revolution with the member with which it is attached and the plate co-operating with said last mentioned plate being provided with a housing and journal for a worm, a worm mounted in said housing and journal in co-operation with said worm gear and a detachable member for rotating said worm.

HAROLD KENNETH SYLVESTER. 

